High pressure reducers (also known as reducers) are chemical pipe fittings

High pressure reducers (also known as reducers) are chemical pipe fittings used to connect two different pipe diameters. They belong to the category of high-pressure pipe fittings and are mainly used in industrial fields such as petrochemicals, power, and water conservancy [1-2]. Its core function is to achieve pipeline system transition through variable diameter connections, which are divided into two categories according to curvature radius: long radius (R=1.5D) and short radius (R=1.0D) [1].
高压减速器（也称为减速器）是一种用于连接两种不同直径管道的化学管道配件。它们属于高压管道接头类别，主要用于石化、电力和水利等工业领域[1-2]。其核心功能是通过变直径连接实现管道系统的过渡，这些连接根据曲率半径分为两类：长半径（R=1.5D）和短半径（R=1.0D）[1]。
This pipe fitting is divided into concentric and eccentric types according to its structure, and its materials include various types of metals and plastics such as carbon steel (20 #, Q235), alloy steel (16Mn), stainless steel (304, 316L), etc. The manufacturing methods include pushing, pressing and other processes, which comply with domestic and foreign standards such as GB12459, ASME/ANSI and DIN. The pressure rating covers 17 types from Sch5s to XXS
该管头根据结构分为同心和偏心两种类型，材料包括多种金属和塑料，如碳钢（20 #，Q235）、合金钢（16Mn）、不锈钢（304,316 升）等。制造工艺包括推压、压制及其他工艺，符合 GB12459、ASME/ANSI 和 DIN 等国内外标准。压力等级涵盖 17 种类型，从 Sch5s 到 XXS